GK Serial Cable with straight 1/4-inch TRS connectors, 9 m long. Also available in a 4.5 m version (BGK-15).

BGK cables offer optimal performance with BOSS guitar synthesizer products compatible with the Serial GK digital interface, such as the GK-5/GK-5B pickups and the GM-800 module. BOSS premium construction includes braided shielding, 24-karat gold-plated connectors, and an outer braided jacket that prevents tangling.